Skin infection (8)
I believe the answer is:
impetigo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">skin infection</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for impetigo that I've seen before include "Contagious skin disease with crusty spots" , "Contagious skin infection common in children" , "Skin condition" , "complaint" , "sickness" .)